Rim tool



J. H. BANKA Aug. 9, 1927.

RIM TOOL Filed April 13, 1927 Joniv H. BANKA, or BATTLE GREEK, MICHIGAN. I

RIM iroorj J Application filed-April 13, 192v. Serial No. 183,393.

Thisl'inventionis a novel improvementin so-called rim -breakers, or toolsfor contract-'- ing and expandlng split demountable' 'rims' such as are commonly employed in connec-' tion with pneumatic tires for wheels of automobiles and the like. i

The object, of the invention is to provide I a novel tol.for this purpose which has few parts, is extremely simple and inexpensive to make, requires very little space in the tool kit, and operates perfectly on split rims of any size; and the tool is so constructed that it not' only can be usedv to engage the rim, force its ends out of alinement and draw it to the smaller diameter, but can also be used to "force the rim back to its alinedposition even against the resistance of the tire casing.

I will explain the invention with reference to theaccompanying'drawings which illustrate a practical tool embodying the same, and set forth inthe claims the novel features and construction of parts for which protection is desired...

In said drawings:

Figure 1 shows the tool attached to a split rim ready forbreakingthe same.

Fig. 2 is a similar view showing the parts adjusted to force the end of the rim out of circular alinement; r

Fig. 3 shows additional parts of the tool after it has broken the rim and contracted the circumference thereof and its removal of the tire; I w

Fig. i is a top plan View of the complete tool as appears in Fig. 1;

Fig. 5 is a transverse section on line 5'5, Fig. 4.

The, device comprises clamp members engaged with the rim at opposite sides of. the split therein, eyesbolts pivoted to the clamp members; a turn-buckle connecting the twobolts; a presser bar pivotedon one ofthe bolts and-having one end adapted to engage the rim at one side of the split therein and provided with an adjustable bolt in its oppo-.

site end adapted to engage the rim at the opposite side of the split, the several parts being preferably constructed as illustrated in the drawing, as follows: 7 y

Each clamp member comprises a bolt 1 which passes through eyes2 'of hooks 2 respectively adapted to engage opposite sides of the rim and be securely confined theretoby' tightening a thumb'nut 1 on the bolt 1. Pivoted on each boltl 1s an eye-bolt 3 h v ng a y 3a en ged itht e b l eml.

its threaded shank is engaged with a" turn buckle a; By turning this buckle 4 the clamp members can be drawn toward orforced away from each other. w

A-presserbar 5 is pivotedlupon one of the bolts 1 beside the eye,v bolt 3 thereon and 1 pro ects at opposite sides of said-bolt 1. ,One"

end of the presser barb is preferablybent outwardly as at 5 so as to engagethe: rim

adjustable bolt 6, whiclrmay befa thumb bolt, and which is adaptedto be adjusted is mounted.

In applying the device the clamp member? carrying the presser bar 5 is attached to the i at one side of the split, as shown, and on the other end of the presser bar'is mounted on:

rim closely adj acentthe split therein as in'di- L cated in Fig. 1, the turnbuckle having been first expanded. The other clamp-member is'then engagedwith the rim at the opposite side of the split'andapproximately as far therefrom as turn buckle will permit. The

bolt 6 on the presser baris then-turned inwardly to forcibly engagethe rim and rockthe. presser'bar on its pivot and cause the rim to break, as indicated in Fig.2, the

toward each other until the rim iscontracted,

In its contracted positionthe-toolholdsf as indicated in Fig. 3..

presser bar forcing the ends thereof out of,

the rim in position toreceive thejtire when it is ready to be again mounted upon the rim. The tool is also adapted to. force the rim back to its normal alined position after the tire has been replacedby reversing the operations above described. The turn buckle being turned back to'restore the parts from the-positionshown in Fig. 3 to the position shown in Fig. 2, and then the thumb screw turned backwardto allow theends ofthe rimto again come ment aslin Fig.1.; c I

While I at present prefer to'use-a thumb screw or bolt as 6, it is'obvi'ous that'other" the presser bar forthe purpose specified.

- The tool can be folded into .a small comorremoved iromj he HSQd, t br ak intocircular aline- "H'H' I equivalent means might-be used for rocking .7 f

1 .l; itself. It can be. veryquickly attached to v lithe? rim vand contact it, and then used to expand-itvback into'position by reversing theoperations above described. The tool is suitable in every way for the purpose of.

quickly and easily chan-ginga tire on a split rim without distorting the rim, or requiring I Iclaim: 1. A rim breaker, comprising a pair of clamps adapted to engage the rim at oppothe use of any other tool.

site side's otithe split therein, each clamp bar pivotally mounted'upon one oi the tie- 7 comprising members to engageopposite sides of the rim and a tie-bolt for securingsaid' -members to (the T1111; ad ustable means connecting the clampswhereby they may be moved to or from each other,.andla presser bolts and extending toward the other clamp f-the said connecting'means to break the rim.

sufiiciently toispan the splitendzengage the far rim end and operable independently of 2. A, rim breaker comprising a pair 01 clamps adapted tov engage the. rim at opposite sidesot the split thereimeach clamp com-- prising hooks to-i 'engage opposite sides of the Y ,rim and a tie-bolt for securing said hooks to the 1 rim ;.adjustable means connecting the clamps whereby they may; be moved to or I"rom 'eachother; a presser bar 'vivotally mounted upon one of thetiebolts and haying one-end extended towards the other clamp snfiioiently to engage the rim at one side of I "the split and means :oonnected Withthe other end of thepresserbar to engage the rim at the other side of the split to operate the presser bar.

3. A rim breaker, oomprisinga ,pair'of clamp members adapted to engage the rim at oppos1te sides of the split therein, each. clamp member comprising hooks to engage opposite sides of therim and a tie-bolt for securing sald hooks to therim; a turnbuckle connecting the clamp members and a presser bar pivotally mounted upon one of the tie- 1 bolts and extending towards the otherclamp suflioiently to span the split and engage the far rimend and operable independentlyof said hooks to the rim a turn-buckle connecting the clamp members; a presserbarpiw otally' mounted upon one of the tie-bolts and having oneend extended towards the other clamp sufficiently to engage the .rim at one side of the split; and means connected With the other end ofthe presserbar to engage the rima'tthe other side of the split to operate the presser bar. I 1 In testimony that I claim the foregoing as my own, I aflix my signature. 7

JOHN QBANKA;

-' the contracting operation of the turn-buckle; 

